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Thread: data wiping

  1. #11
    The Doctor Und3ertak3r's Avatar
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    In your step where you copied and deleted drive filling DVD images, then defraged..then Eraser..
    Could I comment.. running eraser, then defragmenting the drive first in a remote situation (aka from BartPE or with the HDD in another PC), then a couple of times in normal mode. Then run eraser again.
    With encryption of the data before doing any of the above.. I question this.. as the process of encrypting will invarably rewrite the data to differen sectors, potentially leaving the original data (while deleted) in the original sectors un-encrypted.. unless the encrypting app encrypts sector to sector..not file to file as many do.
    "Consumer technology now exceeds the average persons ability to comprehend how to use it..give up hope of them being able to understand how it works." - Me http://www.cybercrypt.co.nr

  2. #12
    Super Moderator: GMT Zone nihil's Avatar
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    Hi Phish~ ,

    I agree, I wouldn't bother to encrypt applications, only data. After all they can go and buy the application in a shop (unless you are a developer)?

    Some (crude) overwriting software will use 35 passes for Gutmann as normal, and more sophisticated ones will do it if they don't know the drive type. It is a sort of "failsafe" value; my point was that the degrees of cover are actually lower.

    Thinking on it, I have one somewhere that allows user selection up to 99 passes, and also does 4048 bit encryption Talk about "overkill"?

    Not that I actually have data thats worth being recovered in the manner you speak of.
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  3. #13
    AO übergeek phishphreek's Avatar
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    With encryption of the data before doing any of the above.. I question this.. as the process of encrypting will invarably rewrite the data to differen sectors, potentially leaving the original data (while deleted) in the original sectors un-encrypted.. unless the encrypting app encrypts sector to sector..not file to file as many do.
    Well, in my case, I didn't do any encrypting. Nihil was suggesting it as more of a "what if"?

    I suppose if one was using EFS and the data was already encrypted, then it wouldn't have to be rewritten? Or, if using a program like truerypt, again, the data is written to an already encrypted file.

    Good point though. I didn't even think of that.
    Quitmzilla is a firefox extension that gives you stats on how long you have quit smoking, how much money you\'ve saved, how much you haven\'t smoked and recent milestones. Very helpful for people who quit smoking and used to smoke at their computers... Helps out with the urges.

  4. #14
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    How about ghosting your current drive to an image and then running dban, then re-imaging with your ghost image. That way at least you know that your harddrive has been wiped several times before re-imaging your computer. Of course you still have that data that is on your image. But at least your free space is clean.

  5. #15
    IT Specialist Ghost_25inf's Avatar
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    http://www.brown.edu/Facilities/CIS/Doc/datarmv.html
    there is a list here on tools that do the job to DOD specifications.
    S25vd2xlZGdlIGlzIHBvd2VyIQ

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